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  1. Custom Fit Vehicle Wiring
  2. CURT
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  4. No Tow Package
  5. Trailer Hitch Wiring
  6. Vehicle End Connector
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
CURT

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Part Number: C56327
In Stock
$72.90
Retail:$121.95
You Save: 40%
Custom Fit Vehicle Wiring

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Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C56327 or order online at etrailer.com. Free expert support on all CURT products. Great prices and Fastest Shipping for Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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CURT Custom Fit Vehicle Wiring - C56327

Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily
    • Locate connection points behind tail lights
    • Plug in T-connector
    • Run hot lead to car battery
  • Includes powered tail light converter that connects directly to battery to avoid overloading vehicle's electrical system
  • Constructed using surface-mount technology (SMT) for consistent, reliable performance
    • Maximizes trailer light yield and intensity while producing minimal heat
    • Ensures superior operation in rough road conditions
  • Comes with dust cap for 4-way flat connector


Specs:

  • Maximum amperage:
    • Stop/turn lights: 3.0 amps per circuit
    • Tail lights: 6.0 amps per circuit
  • Limited 1-year warranty


Installation

This custom-fit T-connector plugs into your vehicle's wiring harness, which is located in your rear cargo area, behind the driver's-side and passenger's-side tail lights. You will have to remove the rear scuff panel to access these connection points. Once you've plugged in the T-connector, run the hot lead up to your car battery. Connect the lead to the included fuse holder, and then connect the fuse holder to the positive terminal on your battery.


Once installation is complete, the 4-way connector will be stowed in an out-of-the-way location within your cargo area.


It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.


Powered Tail Light Converter with Surface-Mount Technology

A tail light converter is built into this T-connector. This converter is a circuit-protected, battery-powered unit that bypasses the electrical routes that are used by a basic wiring harness. As a result, there is virtually no draw on your tail light circuits.


Curt builds each tail light converter using surface-mount technology (SMT). This method of construction involves soldering electronic components directly to the surface of a printed circuit board. SMT eliminates the need for leads, which are used in older through-hole technology. The result is a circuit board that is smaller yet provides more routing area and that offers superior performance, reliability and durability.


Curt SMT Circuit Boards

Circuit boards constructed using SMT have been shown to perform better under rough conditions with excessive vibration than those made using the through-hole method. And where would vibration be more likely to occur than in towing applications? Curt converters also produce less heat, leading to increased durability and longer life. In addition, lower levels of resistance ensure better performance, especially for parts that operate at higher frequencies.


Each Curt circuit board is made using high-quality components that are pieced together in the most technologically savvy fashion, leading to greater predictability and reliability in functioning.



56327 CURT T-Connector - Surface Mount Technology - 4 Wire

Replaces Curt C56249

Similar to Hopkins HM11140244 and Tekonsha 118643

Installation Details C56327 Installation instructions

This Product Fits The Following Vehicles



California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.7

252 reviews
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.

by:
2019 Ford Transit T250

My order was processed and shipped quickly. The packaging was very sturdy and everything arrived intact. I haven't installed it, yet, but they provide multiple installation videos. I wouldn't hesitate to order from them again.



by:
2020 Ford Transit T250

Exactly as advertised and easy installation for a reasonable price!



by:
Ford Transit Connect

Light kit fit my 2022 Ford Transit like a glove. Plug and play.



by:
2023 Ford Transit T250

Love the how-to install video that you guys provide for so many of the products you sell!



by:

Sara was a huge help!! Thanks again etr ailer.com!



by:

Briann did a great job with help to get harness hooked up



by:
Ford Transit Connect

Perfect for our transit van. super easy to install although the wiring was rather difficult to get right. Just the thing to pull our boat trailer with ten kayaks! and a great deal.



by:
ford Transit Connect

This is easiest wiring harness I have had to install on my Ford Transit. I will definitely be always using etrailer from now on, for all my wiring harness needs.



by:
2017 Ford Transit T150

This is an easy to install kit, and the install video made it even simpler. I chose to mount my wiring on the left doorpost, where it can easily be pulled out through the rear door weatherstripping when needed. I was able to keep all wiring inside the van compartment and frame rails. Two hopefully helpful comments:
* In order to mount to the door rail, it is necessary to splice in a couple of feet of wire to the green wire between the two light buckets. By cutting this wire, I was able to snake it through the frame tubing under floor behind the rear door latch. I did not have any wiring outside the vehicle.
* There is a wiring lug available on the side of the driver's seat, adjacent to the battery compartment, which may be a more convenient lug to attach the hot wire to. The video shows running the wire all the way to the engine compartment.
Best of luck.



by:

Very easy install. Worked perfectly



by:

Amy was very helpful and knowledgeable about the products that I purchased.



by:
2020 Ford Transit T350

Liked the kit but found a better way to install without cutting grommets. Mounted below drivers side tail light. See pics. Power wire was run all the way to the fuse box under hood instead of battery under drivers seat. This kept all wiring outside keeping all grommet seals intact, and saving time on removal of interior panels which are difficult with 15 passenger seating still installed.



by:

Perfect fit into existing wiring harnes s.



by:

Easy hook up.
Works perfectly.



by:

yet to install but quick shipping makes me a satisfied customer



by:

Very easy and every thing fit. Good videos on websites to make installation easy



by:

Fantastic delivery time. Well packaged just as ordered!



by:

My whole purchasing experience with this company was excellent. Customer service was great and product was exactly what I needed. Instructions for self install were precise and easy to understand. great experience.



by:

Easy to install. Everything needed in the box and in good shape. Took about a half hour to install the wires to the tail lights. Haven’t tried it yet but fell comfortable that it will. I always buy from etraiier because they carry good quality products, give you video instructions and deliver the products in a timely manner in good condition.



by:

Easy to understand instructions and ins tall



by:

Great product!



by:

Arrived quickly



by:

THANK YOU!!! Delivered when promised and in good order.



by:

Helpful people and the web site is easy to navigate.



by:

Worked great and installation was simple to follow
Thanks


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Show More Reviews

See what our Experts say about this CURT Custom Fit Vehicle Wiring

  • Parts Needed to Add Brake Controller to 2026 Ford Transit T350
    Hi Michael! Do you already have a 7-way on your Transit? If you don't have wiring, you need to start by adding a 4-way with # C56327 (single rear wheel) or # C42MJ (dually). Once you have your 4-way installed you can upgrade it to a 7-way using the # ETBC7. Then for a brake controller, I recommend the Redarc Tow-Pro Liberty Brake Controller # RED52VR. The Liberty is simple, reliable, and installs just about anywhere in the cab. The main unit is hidden and the control knob installs in...
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  • Trailer Hitch & 4-Flat Wiring Harness Fit For 2024 Ford Transit 350
    Hi Rob; thanks for writing in and I have some good news because I checked with our manufacturers and verified for you there is a hitch that fits your 2024 Ford Transit 350: - etrailer Trailer Hitch Receiver # e98842 Then for the 4-flat harness what you need is the T-Connector Vehicle Wiring Harness # C56327.
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  • How to Install a Brake Controller on a 2020 Ford Transit T-250
    We have just what you need to get this job taken care of. There are two wiring kits you will need, the Curt T-Connector # C56327 and the Universal Installation Kit # ETBC7. These two kits combined will include everything you need to install a 7-way on your 2020 Ford Transit T-250, including all of the necessary wires for a brake controller. The Tekonsha P3 # 90195 is what we recommend, as it will be an easy 4-wire install.
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  • Parts Needed To Add 7-Way And Brake Controller To 2024 Ford Transit T-250
    Hey Joel, thanks for reaching out. For starters, the class 4 hitch for the 2024 Ford Transit T250 is the Curt # C14012. As far as wiring, we do have a plug-in option for a 4-flat. Then we have a kit to upgrade that to a 7-way and add your brake controller. Here is what you will need: - Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56327 - Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires # ETBC7 Those...
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  • Recommended Wiring Harness and How to Install on a 2024 Ford Transit T350
    Hey Bill, welcome back! The Curt T-Connector Vehicle Wiring Harness item # C56327 you were looking at is custom fit for the 2024 Ford Transit T350 for the models with single rear wheels. The power wire and ground are going to be the only wires you'll actually have to run. The white ground wire will need to be firmly connected to a bare piece of metal near where you mount the module. The 12v power wire will need to be ran up to your Transit's battery. The custom fit plugs on the Curt item...
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  • How To Tell If a Ford Transit Has the Tow Package and Parts Needed To Add It
    The Ford Transit if equipped with the factory tow package would have came with both a trailer hitch and trailer connector and they would both be located directly under the rear bumper so odds are you do not have either because they are not hard to locate. The factory tow package was also not a very common option but I can provide you with everything to add this on your own at a fraction of the price. The Draw-Tite Max-Frame Trailer Hitch Receiver part # 75912 is a confirmed fit for a 2015...
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  • Do You Have An Installation Video For My 2023 Ford Transit T250 Curt Wiring Harness?
    Hey Barb, Unfortunately we have not had the chance to install the Curt # C56327 on that specific year T250 so we do not have a video of installation. We do have a video on the 2022 Ford Transit T250 and the installation should be very similar. I will attach that below for you, as well as the PDF instructions as well. What are you looking to tow with that T250?
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  • Replacement Hitch Hardware and Wiring for 2018 Ford Transit T150
    Hello again James; you can get replacement hardware for the Curt # C13193 using the Replacement Hardware Kit for Trailer Hitches # RHK. If it was just the bolts you could pick them up locally but you're going to need the spacer blocks as well which aren't readily available anywhere. I added our installation video below, and a picture showing the hardware. For a 4-way you can use the Curt T-Connector Vehicle Wiring Harness # C56327. This will plug into the connection points behind the...
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  • Parts Needed to Add 4-Way and 7-Way to 2023 Ford Transit T250
    Hey Cj! The wiring depends on whether or not you have the factory tow package. If you do have the factory tow package all you need is the 7- and 4-Pole Trailer Connector Socket # HM40975. The wiring connector would look like the one pictured below, probably plugged into the back of a dummy plug at the bumper. If you don't have the factory tow package you need the Curt # C56327 along with the Universal Installation Kit for Trailer Brake Controller # ETBC7 to upgrade to a 7-way. I went...
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    That is the only way you'd be able to install the Tekonsha Prodigy P3 Trailer Brake Controller # 90195 on your 2023 Ford Transit T350 since there is no custom fit wiring harness. To install this, you'll first need to find the cold side of the stop light switch which will only display voltage when the brake pedal is pressed. Once you've found this, you'll connect the red wire from the pigtail harness to it. You'll then have to connect the black wire to the positive side on your battery,...
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  • Plug-Ing Trailer Wiring Recommendation for a 2023 Ford Transit T250
    The Curt T-Connector Vehicle Wiring Harness # C56327 will fit your 2023 Ford Transit T250 just fine as well and installs by teeing into the back of your tail lights and running a 12V power lead up to your vehicle battery. So it won't be 100% plug and play but it also doesn't require you to splice into the OEM wiring on your vehicle. Attached is an installation video of this kit on a 2015 T250 for you to check out.
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  • Parts Needed to Install Brake Controller in 2022 Ford Transit T250
    Hey Robb, we can help you install a brake controller like the Brake EVN part # TK28BR in your 2022 Ford Transit T250 but your vehicle does not come with brake controller wiring so you would have to hardwire it. You'd need to first start with a 4-way if you do not have one already like with the part # C56327 and then convert it to a 7-way with the part # ETBC7 which also comes with everything needed to install a brake controller.
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  • Does Draw-Tite Trailer Hitch 75912 Fit A 2016 Ford Transit T250 High Roof W/ 148 Wheel Base?
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  • Can Brake Controller Get Installed on 2024 Ford Transit T250
    Hey Allen, yes you can install a brake controller like the P3 part # 90195 in your 2024 Ford Transit T250. I attached an install video on this page that shows how we installed this controller on a similar 2020 model. You'll first need to have a 4-way wiring harness installed with the part # C56327 and then you'd need to convert it to a 7-way with the part # ETBC7 which comes with everything needed to wire in the controller as well.
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  • Parts Needed To Add 7-Way And Brake Controller To 2024 Ford Transit 250 Without Factory Tow Package
    Hello Kevin, thanks for reaching out. We do have an option for adding a 4-flat and 7-way to your 2024 Ford Transit T250 without the factory tow package. For that I recommend the following: - Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56327 - Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires # ETBC7 The T-connector will plug in behind the tail lights on each side. Since you do not have the tow package,...
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  • How to Add a 7-Way Connector to a 2015 Ford Transit T250
    Hey Jason. The Curt T-Connector Vehicle Wiring Harness for Factory Tow Package item # C55774 is only going to work if your 2015 Ford Transit T250 has the factory tow package. You'll want to look behind your Transit's rear bumper for a group of wires that has a connector like the picture I attached below. It may be covered in tape or shoved up out of the way. If you do not have the tow package, you'll need the Curt T-Connector Vehicle Wiring Harness item # C56327, which will attach to...
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  • 7-Way Wiring Harness For A 2018 Ford Transit 250
    Hello John, does your 2018 Ford Transit T250 have the factory tow package? If so, you can simply use the Curt T-Connecter # C55774. If it is not factory tow package equipped, you will need the Curt T-Connector # C56327 as well as the Universal Installation Kit # ETBC7. This will include all of the components needed to install the 7-way, including all of the necessary wired for a brake controller. For a brake controller I recommend the Tekonsha Prodigy P3 # 90195 since it is our most durable...
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  • Trailer Wiring for 2016 Ford Transit T150
    Hey William! It sounds like you don't have any kind of factory wiring on your 2016 Ford Transit T150. Assuming that is correct, you need the Curt T-Connector Vehicle Wiring Harness # C56327. This will add a 4-way to your vehicle. If you want to add a 7-way you can upgrade it using the # ETBC7. If you have the factory tow package with the factory wiring connector behind the rear bumper the Curt Dual Connection Socket w/ Bracket # C36GJ will add a 4-way and a 7-way. This plugs into the...
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  • Recommended Hitch and 7-Way Connector for a 2016 Ford Transit 250
    We do not sell a kit but we do have all of the parts you'll need. I have a great hitch for your 2016 Ford Transit 250, however there are no class IV hitches available. This is because your Transit tops out with a 6,200 lbs towing capacity. I recommend the etrailer Hitch item # e98842. This hitch is custom fit and bolts to your Transit with included hardware. It is a class III hitch with a 2" receiver that has a 6,000 lbs towing capacity and a 900 lbs maximum tongue weight. The towing capacity...
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  • Will Curt Wiring Harness Set Off Check Engine Light on a 2018 Ford Transit
    Hey Joseph, thanks for reaching out! The Curt T-Connector Vehicle Wiring Harness # C56327 that you purchased for your 2018 Ford Transit (thank you for that by the way) shouldn't be throwing a check engine light because it only tees in behind the tail lights and pulls power straight from your battery. What I recommend doing to verify this is to disconnect the tee-in connectors behind your tail lights and plug the lights directly into your OEM plug - if you still have the check engine light...
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  • Recommended Hitch and Wiring Harness for a 2023 Ford Transit T350
    To add a hitch to your 2023 Ford Transit T350, I recommend the etrailer item # e98842. This hitch is custom fit and bolts to your Ford with included hardware. This is a class III hitch with a 2" receiver. It has a 6,000 lbs towing capacity and a 900 lbs maximum tongue weight. This capacity can be increased to 9,000 lbs when used with a weight distribution system. I really like the etrailer Hitch item # e98842 because it installs far enough back that the receiver sticks out right below...
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  • Does Factory Plug for Trailer Wiring Exist on 2015 Ford Transit T350
    Everything that we have either plugs into a US Car Connector like what the Curt T-Connector # C55774, or it plugs in behind the tail lights like what the Tekonsha # 22114 and # C56327 do. During my research I wasn't able to find an OEM connector for trailer wiring that looked like that but it's still worth looking into. If you remove the fake plug from that connector and then use a circuit tester # PTW2979 to test the functions of the various pins on that connector, then you should be...
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    Image 1 for Image 2 for
  • Installing Trailer Brake Controller on 2020 Ford Transit T250
    For a brake controller for your 2020 Ford Transit T250 I would recommend the Prodigy P3 Brake Controller part # 90195. This is our best selling brake controller because of how well it works and how easy it is to setup. This is a proportional brake controller that senses the amount of braking the tow vehicle is applying and applies a proportionate amount to the trailer brakes. This will be the last brake controller you buy. It can easily be transferred to future vehicles as well. There...
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  • What Parts do I Need to Install a Brake Controller on My 2022 Ford Transit T250?
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Info for this part was:

Employee Lindsey S
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